<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>axios 的默认配置</title>
    <link
      crossorigin="anonymous"
      href="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/css/bootstrap.min.css"
      rel="stylesheet"
    />
    <script src="https://cdn.bootcdn.net/ajax/libs/axios/1.5.0/axios.min.js"></script>
  </head>
  <body>
    <div class="container">
      <h2 class="page-header">基本使用</h2>
      <button class="btn btn-primary">发送GET请求 获取数据</button>
      <button class="btn btn-warning">发送POST请求 上传数据</button>
      <button class="btn btn-success">发送 PATCH 请求 更新指定数据</button>
      <button class="btn btn-danger">发送 DELETE 请求 删除指定数据</button>
    </div>
    <script>
      // 获取按钮
      const btns = document.querySelectorAll("button");
      // 默认配置
      axios.defaults.method = "GET"; // 设置默认的请求类型为GET
      axios.defaults.baseURL = "http://localhost:3000"; //设置基础URL
      axios.defaults.params = {
        id: 1,
      }; // 设置查询字符串 /posts?id=1
      axios.defaults.timeout = 3000;// 设置超时间 3秒后请求失败

      btns[0].onclick = function () {
        axios({
          url: "/posts",
        })
          .then((result) => {
            console.log(result);
          })
          .catch((err) => {
            console.log(err);
          });
      };
    </script>
  </body>
</html>
